Add JUnit tests for Parser.java

src/main/java/Parser.java

@@ -43,7 +43,7 @@ Task commandToTask(String s) throws IncompleteInputException {
                 time = arr[3];
                 return new Event(name, time);
             }
-        } catch (StringIndexOutOfBoundsException e) {
+        } catch (ArrayIndexOutOfBoundsException e) {
             throw new IncompleteInputException();
         }
     }

src/main/java/Todo.java

@@ -26,4 +26,18 @@ Todo completeTask() {
     public String toString() {
         return "[todo]" + super.toString();
     }
+
+    @Override
+    public boolean equals(Object obj) {
+        Todo test = (Todo) obj;
+        if (obj == this) {
+            return true;
+        } else if (obj == null || obj.getClass() != this.getClass()) {
+            return false;
+        } else if (this.name.equals(test.name) && (this.completed == test.completed)) {
+            return true;
+        } else {
+            return false;
+        }
+    }
 }

src/test/java/ParserTest.java

@@ -0,0 +1,38 @@
+import org.junit.jupiter.api.Test;
+import static org.junit.jupiter.api.Assertions.assertEquals;
+import static org.junit.jupiter.api.Assertions.fail;
+
+public class ParserTest {
+    Parser p = new Parser();
+
+    @Test
+    public void testGetTaskNumber() {
+        assertEquals(1, p.getTaskNumber( "done 1"));
+        assertEquals(17, p.getTaskNumber( "delete 17"));
+        assertEquals(299, p.getTaskNumber( "done 299"));
+    }
+
+    @Test
+    public void testCommandToTask_completeInput_success() throws IncompleteInputException {
+        assertEquals(new Todo("eat"), p.commandToTask("todo eat"));
+        /*assertEquals(new Deadline("homework", "2020-08-30"),
+                p.commandToTask("deadline homework /by 2020-08-30"));
+        assertEquals(new Event("birthday", "2020-12-04"),
+                p.commandToTask("event birthday /at 2020-12-4"));*/
+    }
+
+    @Test
+    public void testCommandToTask_incompleteInput_exceptionThrown() throws IncompleteInputException {
+        try {
+            assertEquals(new Todo("eat"), p.commandToTask("todo"));
+            fail(); // the test should not reach this line
+        } catch (Exception e) {
+            assertEquals("please finish your sentence.. :(\neither your task name is blank " +
+                    "or youre missing the time!!", e.getMessage());
+        }
+        /*assertEquals(new Deadline("homework", "2020-08-30"),
+                p.commandToTask("deadline homework /by 2020-08-30"));
+        assertEquals(new Event("birthday", "2020-12-04"),
+                p.commandToTask("event birthday /at 2020-12-4"));*/
+    }
+}

src/test/java/UiTest.java

@@ -0,0 +1,14 @@
+import org.junit.jupiter.api.Test;
+
+import java.util.Scanner;
+
+import static org.junit.jupiter.api.Assertions.assertEquals;
+
+public class UiTest {
+    Ui ui = new Ui(new Scanner(System.in));
+
+    @Test
+    public void dummyTest(){
+        assertEquals(2, 2);
+    }
+}